The singular for sets of parentheses is parenthesis. But since this person is referring the 'the sign', she's really talking about a parence sign (the singular mark, either '(' or ')').
Learn something new everyday.
The singular for sets of parentheses is parenthesis. But since this person is referring the 'the sign', she's really talking about a parence sign (the singular mark, either '(' or ')').
Learn something new everyday.